From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 084AAC44501 for ; Sun, 12 Jul 2026 16:58:38 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 11D2810E0D8; Sun, 12 Jul 2026 16:58:38 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; secure) header.d=posteo.de header.i=@posteo.de header.b="cdxvjcB5"; dkim-atps=neutral Received: from mout02.posteo.de (mout02.posteo.de [185.67.36.66]) by gabe.freedesktop.org (Postfix) with ESMTPS id 42E0310E0D8 for ; Sun, 12 Jul 2026 16:58:36 +0000 (UTC) Received: from submission (posteo.de [185.67.36.169]) by mout02.posteo.de (Postfix) with ESMTPS id E5AA5240103 for ; Sun, 12 Jul 2026 18:58:33 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=posteo.de; s=1984.8680eb; t=1783875513; bh=tWPQ6xBmlMcyxk91xqi/8tmhrSraaxd2DhrAIo7VbCw=; h=From:Subject:Date:Message-Id:MIME-Version:Content-Type: Content-Transfer-Encoding:To:Cc:Autocrypt:OpenPGP:From; b=cdxvjcB5ayo++BS3lquX4XecaUSKvtX3SWO6sbT+dKkTQed73EMjFWPo9+giynXuY m3rlF9Gou9Ot93cQZSZ2akCsYykuHXAyuJCwpxYQ8jfz9RvNYIrkarTe/lweEEttnZ 7MT4uuJ/Wb4+8C2XpM6zfp8E6dvbwvap5U19dsiEjvK+yxMG0HC6mok5TaS+bw1ukG FAR3xJQnDjWbIPZ+fdpvl0u3VhAVxsKONVquY+KEsBxwnw5ARj6nfLSpos5Z0avHgf 9r83Oq0Z1RubOe7AZcoQu5hHYvSEZxIHNr6opqpAIu8liAVpPrmSlEb4lIkuL36FN1 Ecmk2IDJEs20w== Received: from customer (localhost [127.0.0.1]) by submission (posteo.de) with ESMTPSA id 4gysGF243Hz6tsg; Sun, 12 Jul 2026 18:58:29 +0200 (CEST) From: Markus Probst Subject: [PATCH v13 0/3] rust: add basic serial device bus abstractions Date: Sun, 12 Jul 2026 16:58:32 +0000 Message-Id: <20260712-rust_serdev-v13-0-2c4060bc8e30@posteo.de> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-B4-Tracking: v=1; b=H4sIAAAAAAAC/33T227bMAwG4FcJfD0FIiXqkKu+x1AUOlCt0SXuZ NfYUPTdJ6crajtALyXgo0n551s3cu157E6Ht67y3I/9cGkHUD8OXXoKl0cWfW4XHUokQLCivo7 TQ1OZZ8FM2gF76Sh1TbxULv2fa7mf9+381I/TUP9eq8+w3P6vg3JTZwYhBWttNFljDcLdyzBOP Bwzd0udGT+tkUqarcXF+ogqaoxItLdqZUFtrWo2+aBCQdDFlr3VX1YDbK1u1mlib2QyBu3e0sr u56VmybKLQRL4ovbWrO32zWfTLFhlvcvEEG6sXVu/tbZZmZ1P1kOk5PbWfVlSu55dsxg8FcgBM dzM67+xvtniIpWUovbppmeQ32BoPQtDGTLl6KxJNxrWevebYMlWZnbcBley3GQLVuFqEdnpJV1 KS1lKdC4CrvX7R+Qr/35tizN95L478ziG696cDp8DgUKrzFGhd6S9AJHDc7175nrhX8ehPi7LE 8PIIg3ncz+dDrM9oqgJ20fe/wEYdC/xpQMAAA== X-Change-ID: 20251217-rust_serdev-ee5481e9085c To: Rob Herring , Greg Kroah-Hartman , Jiri Slaby , Miguel Ojeda , Gary Guo , =?utf-8?q?Bj=C3=B6rn_Roy_Baron?= , Benno Lossin , Andreas Hindborg , Alice Ryhl , Trevor Gross , Danilo Krummrich , Kari Argillander , "Rafael J. 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preference=encrypt X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" This patch series adds the serdev device bus rust abstraction into the kernel. This abstraction will be used by a driver, which targets the MCU devices in Synology devices. Kari Argillander also messaged me, stating that he wants to write a watchdog driver with this abstraction (needing initial device data). This series depends on [1]. [1] https://lore.kernel.org/rust-for-linux/20260530132736.3298549-1-dakr@kernel.org/ Signed-off-by: Markus Probst --- Changes in v13: - Added Acked-by trailer from Rob. Consider this a RESEND. - Link to v12: https://patch.msgid.link/20260603-rust_serdev-v12-0-3400ffb88b12@posteo.de Changes in v12: - fix CoreInternal instead of BoundInternal - Link to v11: https://patch.msgid.link/20260531-rust_serdev-v11-0-dee8e0d830f1@posteo.de Changes in v11: - redo changes from v9 with the following fixes: - fix memory leak on probe failure - fix possible access of dropped drvdata from receive_buf - Link to v10: https://patch.msgid.link/20260530-rust_serdev-v10-0-65d1d5db876c@posteo.de Changes in v10: - revert everything from v9, except BoundInternal - use mutex to ensure receive_buf won't be called on a dropped drvdata. - Link to v9: https://patch.msgid.link/20260530-rust_serdev-v9-0-f8b5fccb49c3@posteo.de Changes in v9: - make use of BoundInternal - use PrivateData wrapper and drop rust_private_data field - use non-devm version of serdev_device_open - Link to v8: https://patch.msgid.link/20260530-rust_serdev-v8-0-2a95f1da22a7@posteo.de Changes in v8: - adapted to driver-lifetime v5 patch series - add MAINTAINERS file patch - Link to v7: https://patch.msgid.link/20260429-rust_serdev-v7-0-0d89c791b5c8@posteo.de Changes in v7: - adapted to driver-lifetime patch series - Link to v6: https://patch.msgid.link/20260427-rust_serdev-v6-0-173798d5e1a3@posteo.de Changes in v6: - rebased onto v7.1-rc1 - Link to v5: https://patch.msgid.link/20260420-rust_serdev-v5-0-57e8ba0519f3@posteo.de Changes in v5: - fix typo in documentation - Link to v4: https://lore.kernel.org/r/20260411-rust_serdev-v4-0-845e960c6627@posteo.de Changes in v4: - fixed not selecting rust serdev abstraction in sample - Link to v3: https://lore.kernel.org/r/20260313-rust_serdev-v3-0-c9a3af214f7f@posteo.de Changes in v3: - fix vertical import style - add Kconfig entry for the rust abstraction - fix documentation in include/linux/serdev.h - rename private_data to rust_private_data - fix `complete_all` <-> `wait_for_completion` typo - move drvdata_borrow call after the completion - Link to v2: https://lore.kernel.org/r/20260306-rust_serdev-v2-0-e9b23b42b255@posteo.de Changes in v2: - fix documentation in `serdev::Driver::write` and `serdev::Driver::write_all` - remove use of `dev_info` in probe from the sample - remove `properties_parse` from the sample - add optional `baudrate` property to the sample - remove 1. patch - remove `TryFrom<&device::Device> for &serdev::Device` implementation - fix import style - add patch to return reference in `devres::register` to fix safety issue - add patch to add private data to serdev_device, to fix `Device.drvdata()` from failing - simplify abstraction by removing ability to receive the initial transmission. It may be added later in a separate patch series if needed. - Link to v1: https://lore.kernel.org/r/20251220-rust_serdev-v1-0-e44645767621@posteo.de --- Markus Probst (3): rust: add basic serial device bus abstractions samples: rust: add Rust serial device bus sample device driver MAINTAINERS: serdev: Add self for serdev MAINTAINERS | 5 +- drivers/tty/serdev/Kconfig | 7 + rust/bindings/bindings_helper.h | 1 + rust/helpers/helpers.c | 1 + rust/helpers/serdev.c | 22 ++ rust/kernel/lib.rs | 2 + rust/kernel/serdev.rs | 590 +++++++++++++++++++++++++++++++++++++ samples/rust/Kconfig | 11 + samples/rust/Makefile | 1 + samples/rust/rust_driver_serdev.rs | 91 ++++++ 10 files changed, 730 insertions(+), 1 deletion(-) --- base-commit: 4c45e14df2f4e77982ad70d6d8e3fe750edd4c37 change-id: 20251217-rust_serdev-ee5481e9085c prerequisite-message-id: 20260530132736.3298549-1-dakr@kernel.org prerequisite-patch-id: 310c6bee038ca3909a8e5e58ec12b74f7189b869 prerequisite-patch-id: 92812c3d42b29504838e6dc66c307ff5c035bb5e